Thomas Edison did not invent Light bulb , Sir Humphry Davy - TopicsExpress



          

Thomas Edison did not invent Light bulb , Sir Humphry Davy did. In 1802, Humphry Davy had what was then the most powerful electrical battery in the world at the Royal Institution of Great Britain. In that year, he created the first incandescent light by passing the current through a thin strip of platinum, chosen because the metal had an extremely high melting point. It was not bright enough nor did it last long enough to be practical, but it was the precedent behind the efforts of scores of experimenters over the next 75 years until Thomas Edison’s creation of the first commercially practical incandescent lamp in 1879.
Posted on: Tue, 27 Aug 2013 12:20:19 +0000

Trending Topics



Recently Viewed Topics




© 2015